Definition: You are given a question on professional psychology. You are also given 4 answer options (associated with "A", "B", "C", "D"), out of which only one is correct. You need to answer the question by selecting the correct option. You should only answer with the choice letter, not the whole answer.
Input: Which of the following functions tends to decline the most with age
(A)Attention span (B)Ability to process information rapidly (C)Crystallized intelligence (D)Implicit memory

B